Soil moisture influences nectar robbing and plant fitness in a primrose species

Low soil moisture, a prominent indicator of a changing climate, has overarching impacts on plant reproduction both directly and indirectly by affecting the visitation rate of pollinators. However, the role of soil moisture in modifying the behaviors of species interacting with plants is less well explored, as are the mechanisms associated with those changes in behavior. Reduced soil moisture can disrupt mutualistic species interactions, potentially shifting them toward antagonism and negatively impacting plant fitness. 
We investigated the effects and underlying mechanisms of soil moisture on the intensity of nectar robbing (a common behavioral interaction between plants and pollinators) in natural populations of Primula florindae on the southeast Tibetan Plateau. To understand the relationships between soil moisture and nectar robbing and the mechanisms involved, we explored within-population variation in nectar robbing, floral and nectar traits, and the diversity and evenness of ..., , # Soil moisture influences nectar robbing and plant fitness in a primrose species

Dataset DOI: [10.5061/dryad.1ns1rn95c](10.5061/dryad.1ns1rn95c)

## Description of the data and file structure

This dataset was collected for revealing the effects and underlying mechanisms of soil moisture on the intensity of nectar robbing (a common behavioral interaction between plants and pollinators) and plant fitness in natural populations of *Primula florindae* on the southeast Tibetan Plateau.

### Files and variables

#### File 1: **Soil moisture and nectar robbing intensity**

**Description:** The data were used to test the direct effect of soil moisture on nectar robbing intensity‌ at the plot level.

#### File 2: **PLS-PM analysis data**

**Description:** The data were used to examine the pathways through which soil moisture affects nectar robbing based on partial least squares structural equation modeling (PLS-PM).

#### File 3: **Flower longevity**

**Description:** The data were used to ex...,